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A3 Super II User Manual v1.2 (2.98MB)

A3 Super II Config Software v1.0 (6.47MB)

 (2015.11.15) The latest firmware update F/W V1.2 has been released, upgrade your unit now! This is an important update for gasoline-powered planes. The new firmware has solved the problem of disturbance caused by CDI of the engine. Also the function of stick centering by togglling the switch has been cancelled in the new version to prevent misoperation in the flight. The update operation will not change the current settings within the controller and after upgrade you can continue to use the existing versions of the config software and the program card. How to upgrade online? Get the offline upgrade pack.


  • 32-bit MCU, 3-axis gyroscope and 3-axis accelerometer.
  • One-click rescue, One-click hover.
  • 6 flight modes: off, normal, 3D, auto-balance, auto-hover and user defined mode.
  • 2 stick control modes: Manual Mode(MM) and Auto Mode(RR/AR).
  • Various wing types: 1AIL+1ELE, 2AIL+1ELE, 1AIL+2ELE, 2AIL+2ELE, delta-wing and V-tail.
  • Separated gain setting and gain rate for each flight mode, remote master gain control.
  • Compatible with all standard receivers or Futaba's S.Bus/S.Bus single-line receiver.
  • Up to 333Hz servo operating frequency, compatible with all analog and digital servos.
  • 5-level response rate setting allows you to use it on gas-powered planes.
  • H.V(8.4V) receivers and servos supported.
  • Flat or upright mounting orientations.
  • A program card helps you setting up the controller more easily in the field.
  • New designed config GUI allows you upgrade the firmware online

Flight Mode

A3 Super II provides 6 different flight modes. You can assign your desired flight mode for each position of the 3-way switch using the config software or the programming card. If the input [MOD] is not connected, system will always default to the mode that has been assigned to Position-1.

Gyro Off Mode

Choose this mode to disable the gyros for all channels. The plane will be completely under the control of the radio. The plane will go back to its previous performance when operating it in this mode. Usually it is only used to test.

Normal Mode

Normal mode is the most basic application of the gyro. In this mode, the gyro will sense angular velocity on each axis and make a momentary reaction. The normal mode is suitable for all types of fixed-wings, it can effectively improve the stability of your plane specially on a windy day.

3D AVCS Mode

The AVCS mode is an advanced application of the gyro. By adding an integral algorithm to the gyros, the controller will try to lock the plane to its previous attitude if there is no command sent from the transmitter in a flight. This mode can effectively help you to accomplish such hard actions as hover and knife edge. But this mode is designed especially for the 3D planes, it's not suitable for the planes those not designed for 3D flight.

Auto-balance Mode

The auto-balance mode is designed for the new beginners or the FPV applications. When operating in this mode, the controller will command the plane to maintain level flight automatically when you release the sticks. When switch it to this mode from any other modes in an emergency, the plane will recover to the level flight automatically, which we call "one-click rescue".

Auto-hover Mode

The auto-hover mode is another form of the self balance ability of the controller. The only difference is that the correction from the gyro will be applied to both pitch and yaw axes, to keep the plane always vertical. When switch to this mode, the plane will lift its nose and start to hover automatically, which we call "one-click hover".

User Defined Mode

This mode allows you to select different mode for each axis, from normal , 3D or gyro off mode.


Stick Control Mode

Manual Mode(MM) When manual mode is chosen, the sticks are used to control the surfaces directly as usual. That is, there is no rotation rate or tilt angle locking and limitation when you move the sticks. All the servos will be completely under the control of the radio. It's more obvious to the users because you can see the servos move following the sticks as you expected. The plane will maintain its original control behavior when operating it in this mode.

Auto Mode(RR/AR) When using this mode, the controller will take over the control of all servos. The sticks are used to control the rotation rate (RR) on each axis when flying in normal or 3D mode, or the tilt angle rate (AR) on each axis when flying in auto-balance or auto-hover mode. The max rotation rate and max tilt angle can be set in the program card or the config software. In this mode, the controller will handle the position of the surfaces based on the actual rotation rate or tilt angle of the plane intelligently. This is why the movement of the servo will become different from the manual mode.

Flight Mode Stick Control Mode
Manual Auto
Gyro Off MM MM
Normal MM RR
Auto-balance MM AR
Auto-hover MM AR
User-defined Depends on the flight mode of each axis

MM: Stick controls the servo directly.
RR: Stick controls the rotation rate on each axis.
AR: Stick controls the tilt angle rate on each axis.
* Whatever the setting of control mode is, the stick is always used to control the servo directly when operating in gyro off mode or the gyro of the corresponding axis has been disabled.



  • Main Controller: 32-bit MCU
  • Sensor: 3-axis gyroscope and 3-axis accelerometer
  • Gyroscope Scale Range: ±2000 dps
  • Accelerometer Scale Range: ±4g
  • Input Signal: Standard PPM with center point 1520uS, or S.Bus serial data
  • Output Signal: PWM max frequency 333Hz, 1520±500uS
  • Input Voltage: 4.8V ~ 8.4V
  • Operating Temp: -10 ℃ ~ 50 ℃
  • Size: 43×27×14mm
  • Weight: 10g (excluding wires)


Full Set w/ Programming Card

A program card can help you setting up all parameters of the controller more easily, especially when you are in the field.
Including: A3 Super 2 Main Controller × 1, Program Card × 1, Receiver Cable(15cm) × 3, Data Cable(40cm) × 1, USB Adapter × 1, Voltage Protector× 1, 3M Double-sided Tapes × 2



A more economical solution for you.
Including: A3 Super 2 Main Controller × 1, Receiver Cable(15cm) × 3, Data Cable(40cm) × 1, USB Adapter × 1, Voltage Protector× 1, 3M Double-sided Tapes × 2


A3 Super II 30E Demo



Introduction to the A3 Super II



A3 Super II Setup in an aircraft



A3 Super II Software Introduction



A3 Super II Config Software v1.0 (6.45MB)  .NET Framework 2.0 (22.4MB)

* Supports for Windows XP/2003/Vista/7/8;
* If you are using Windows XP or 2003, you will need to install the Microsoft .NET Framework 2.0 manually before installing the config software;
* You can select the display language in the main menu by clicking the icon in top left corner of the software.



Main Menu

Click the icon on the title bar to open the main menu. The main menu contains all functions.


Change Language

You can select the language from the main menu. You need to restart the software after change the language.


Offline Upgrade Packs

A3 Super II F/W Upgrade Pack V1.2 (206KB)  A3 Super II F/W Upgrade Pack V1.1 (206KB) 
Offline Upgrade Instructions (882KB)


Online Upgrade Instructions

Disconnect all of the servos from the controller and power off the plane before starting. It is very important to confirm that you have disconnected the power at the beginning, otherwise the update procedure won't work in the next steps. Now insert the USB key into the PC and run the config software of A3 Super II. Complete the upgrade by following the steps below:

Step 1: Click "Firmware Update" from the main menu to open the update wizard.


Step 2: Select the target device in the list, controller or the card.


Step 3: Click "Next", the wizard will query the available firmware resource from the server. The newer version will be listed on top, you just need to select one that you want to update. Usually we will upgrade the firmware from a lower version to a newer one, but if you need, it also allow you to restore the firmware to a previous version.


Step 4: Make sure the device has been disconnected from the PC now and click "Next".


Step 5: When a message "Detecting…" and a progress bar is shown in the lower-left corner, connect the controller or the card to the USB adapter and the update process will start automatically. Don't disconnect the device and don't close the wizard while the upgrade is in progress.


Step 6: When the update is complete, click "Close" to close the wizard.


If the upgrade process terminates unexpectedly, unplug the device from the USB key and try to do it again.

A3 Super II supports a standard receiver or a Futaba's S.Bus receiver. You don't need to connect all of the 7 input channels, just connect those you want to use. The controller will detect the input signal for each channel and enable or disable the correlation functions automatically. For example, if the input [AIL2] is connected, the dual aileron control system will be activated by the controller. It's recommended that you should at least connect the channels for [AIL], [ELE], [RUD] and [MOD].

Standard Receiver


Futaba S.Bus / S.Bus 2

When using a Futaba's S.Bus receiver, you can make a single-line connection between the receiver and the controller. Just plug the male to male lead into the input [S.Bus/MOD] and from the receiver's s.bus output pin. In this case, you don't need to connect other inputs of the controller anymore. As the S.Bus is a single-line solution all channels are transmitted via one single line, in order to make the controller distinguish the input signals for each channel correctly, you have to tell it the channel mapping on your transmitter by using the program card or the config software. A3 Super supports a maximum of 16 channels when using S.Bus solution.


Port Description

AIL For aileron control
ELE For elevator control
RUD For rudder control
AIL2 For aileron 2 control
ELE2 For elevator 2 control
GAIN For remote master gain control
S.Bus/MOD For flight mode switch or Futaba's S.Bus input. It's also the power supply interface of the controller.
OUT1 To aileron servo
OUT2 To elevator servo
OUT3 To rudder servo
OUT4 To the second aileron servo
OUT5 To the second elevator servo
DATA To the program card and the PC


The controller must be mounted on the platform inside the airframe by using one of the provided double-sided tapes. When mounting, try your best to mount the controller as close to the C.G. as possible. Pay attention that the edges of the controller unit are all parallel with the corresponding axes of the plane, and make it parallel to the mounting platform. The controller can be attached flat or upright, and even upside down under the plane. The illustration shows you the 4 different mounting orientations. However, no matter which orientation to select, you have to ensure that the side of DATA interface is always pointing to the plane's heading direction, otherwise the stabilizer will not work properly.


Main Controller

The main controller has a built-in 32-bit MCU and a MEMs sensor consist of a 3-axis gyroscope and a 3-axis accelerometer. There are up to 7 input channels and 5 output channels. It also has a 4-pin data interface for connecting the program card and PC. A RGB LED is used to display the operation state. The main controller is small in size and light in weight, it can be attached flat or upright, and even upside down under the plane.

Program Card

The program card is used to setup the controller more quickly and easily, especially in the field. The card has a white backlit LCD screen and supports both Chinese and English languages. The firmware of the card can be upgraded online and it can be also used for other products from HOBBYEAGLE.

Receiver Cable

Cables used to connect the main controller and the receiver. Including male to male power lead 15cm × 1, combined signal lead 15cm × 2.

USB Adapter

This adapter is used to connect to the PC.

3M Double-sided Tapes

The double-sided tapes are used to attach the controller on the fuselage.

Voltage Protector

This capacitor is used to secure working voltage level for the controller and only used when needed.

Feature Comparison of A3 Series

 对比项目 A3 Super II A3 Super A3 (V2) A3-L (V2) A3 Pro SE
 Sensor 6-axis 6-axis 6-axis 3-axis 3-axis
 MCU 32-bit 8-bit 8-bit 8-bit 8-bit
 Input Channels 7 6 5 5 4
 Output Channels 5 5 3 3 3
 Flight Mode
 Gyro Off Mode
 Normal Mode
 3D AVCS Mode  
 Auto-balance Mode    
 Auto-hover Mode      
 User-defined Mode        
 Gain Adjustment
 Gain adj. for each Flight Mode  
 Gain adj. for each Channel    
 Remote Master Gain  
 Gain Rate    
 Stick Control Mode        
 Dual Aileron      
 Dual Elevator      
 Delta-wing, V-tail
 Standard Receiver
 Futaba S.Bus/S.Bus 2    
 H.V. (7.4V)   Since H/W V1.1
 Setting Mode PC / Program Card PC / Program Card Button Button Button
 Response Rate      
 Servo Frequecy 50/65/165/200/270/333Hz 50/63/83/125/250Hz 50/125/250Hz 50/125/250Hz 50/133Hz
 Travel Limit      
 Stick Deadband      
 Firmware Update